Portable air conditioner



FIG. 1 is a front elevational view of a portable air conditioner showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is bottom plan view thereof.

The broken-line disclosure in the views is understood to represent portions of the article in which the claimed design is embodied, but which form no part of the claimed design. 

The ornamental design for a portable air conditioner, as shown and described. 